Answer: lengths

AnswerCrossword Clue
LENGTHS

Victory margins at the track

LENGTHS

Derby margins

LENGTHS

Some go to great ones

LENGTHS
End-to-end measures
LENGTHS
Margins of victory
LENGTHSHorse racing units
LENGTHSRace units
LENGTHSLinear measurements
LENGTHSEnd-to-end measurements
LENGTHSEnd-to-end extents.
LENGTHSLong stretches.
LENGTHSMeasurements.
LENGTHSGo to great ... (extend oneself)
LENGTHSRunning times
LENGTHSDurations
LENGTHSMargins of victory, in horse races
LENGTHSUnits in a horse race
LENGTHSUnits at a horse race